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Thread: Swapping wheels

  1. #1
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    Swapping wheels

    Anyone know a site or something to show height of various wheels/tire combinations?

    I have 26x4 now, and want to go to something skinnier for summer/general use.

    So I can go 27.5x2.8 or so, or up to 29xX too.

    But Iím concerned with dropping the bb lower with certain sizes.

    Not sure where to begin I guess.

  2. #2
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    Some of the tire manufacturers post that info. Surly does/did for theirs at one point.

  3. #3
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    https://www.bikecalc.com/wheel_size_math

    a 26er with 4.8 is bigger than 29er with 3.0

    (assuming all have high pressure)



    Note that the difference between a 26 and 650 is only 75mm in circumference with same tire size
    "There is a big difference between kneeling down and bending over" -FZ

  4. #4
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    Swapping wheels-2017-jamis-eden-womens-26plus-hardtail-mountain-bike01.jpg
    From Bike Rumor and Jamis.
    ptarmigan hardcore

  5. #5
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    Swapping wheels-15_sept_ontheplusside_header2.jpg
    From QBP
    ptarmigan hardcore

  6. #6
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    Quote Originally Posted by Co-opski View Post
    Click image for larger version. 

Name:	2017-jamis-eden-womens-26plus-hardtail-mountain-bike01.jpg 
Views:	47 
Size:	88.3 KB 
ID:	1279733
    From Bike Rumor and Jamis.

    Note that there is a range for each combo.

  7. #7
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    That helps a bunch. It looks like a 27.5x3 wheel/tire combo is what I'd need to keep the same height as 26 x 4.0 that I have now.

    I already have a 29x2.20 bike, so no reason to do another, but the 27.5 x 3 would be perfect. A bit more "normal" without being identical.

    Thanks a bunch

  8. #8
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    Quote Originally Posted by curtlo-dork View Post
    That helps a bunch. It looks like a 27.5x3 wheel/tire combo is what I'd need to keep the same height as 26 x 4.0 that I have now.

    I already have a 29x2.20 bike, so no reason to do another, but the 27.5 x 3 would be perfect. A bit more "normal" without being identical.

    Thanks a bunch
    I can say that I've measured a 26x3.8 Bonty Hodag on 80mm Mulefut at 9psi and a WTB TrailBoss 27.5x3.0 on i45 Scraper at 10psi, side by side. They were within a 1/16" of an inch of each other. Just keep in mind some 27.5x3.0 are on the shorter end and 27.5x2.8 drops quite a bit more diameter.
    "I ride to clear my head, my head is clearer when I'm riding SS. Therefore, I choose to ride SS."~ Fullrange Drew

  9. #9
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    ^^^^ Like what NJ said. I've run Schwalbe Jumbo Jim 26x4.0 and Nobby Nic 27.5x2.8 and Rocket Ron 27.5x3.0 and the Rocket Rons are noticeable bigger than the Nobby Nics and the RR run closer to the JJ in diameter.
    ptarmigan hardcore

  10. #10
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    That Jamis graphic has been around a while, (nothing wrong there).

    What I think is hilariously stupid on their part is to include a wheel/tire size in their graphic, that they don't even offer.

    Whomever it is in the industry that's quietly trying to kill 29+, please go outside and punch yourself in the junk repeatedly, till such time as you disabuse yourself of that notion, then go back inside, and put some frozen peas in your lap and go back to work designing whatever the next big thing you want to sell us is.
    This is a Pugs not some carbon wannabee pretzel wagon!!

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  11. #11
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  12. #12
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    Quote Originally Posted by MendonCycleSmith View Post
    That Jamis graphic has been around a while, (nothing wrong there).

    What I think is hilariously stupid on their part is to include a wheel/tire size in their graphic, that they don't even offer.

    Whomever it is in the industry that's quietly trying to kill 29+, please go outside and punch yourself in the junk repeatedly, till such time as you disabuse yourself of that notion, then go back inside, and put some frozen peas in your lap and go back to work designing whatever the next big thing you want to sell us is.
    I'm 100% on board with this. 29+ is where it's at.
    I like turtles

  13. #13
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    Quote Originally Posted by NYrr496 View Post
    I'm 100% on board with this. 29+ is where it's at.
    What he said.
    "I ride to clear my head, my head is clearer when I'm riding SS. Therefore, I choose to ride SS."~ Fullrange Drew

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